136708364520 has 1024 divisors, whose sum is σ = 595123200000. Its totient is φ = 27106762752.

The previous prime is 136708364497. The next prime is 136708364521. The reversal of 136708364520 is 25463807631.

136708364520 is a `hidden beast` number, since 1 + 3 + 67 + 0 + 8 + 3 + 64 + 520 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (136708364521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 334250076 + ... + 334250484.

It is an arithmetic number, because the mean of its divisors is an integer number (581175000).

Almost surely, 2^136708364520 is an apocalyptic number.

136708364520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136708364520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (297561600000).

136708364520 is an abundant number, since it is smaller than the sum of its proper divisors (458414835480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136708364520 is a wasteful number, since it uses less digits than its factorization.

136708364520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647 (or 637 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The spelling of 136708364520 in words is "one hundred thirty-six billion, seven hundred eight million, three hundred sixty-four thousand, five hundred twenty".